Heat-generator.



A. NOETEL.

HEAT GENERATOR.

APPLICATION FILED MAY 16, 1908.

912,879. Patented Feb. 16, 1909.

WITNESSES v IN VE N TOR,

87mm: 2 M 1 ibgwsi il o ete,

AUGUST NOETEL, OF NEW YORK, N. Y.

HEAT-GENERATOR.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Application filed May 16, 1908. Serial No. 488,276.

ful Improvements in Heat-Generators, of

which the following is a specification.

This invention relates to heat generators and more especially to devicesin which a small degree of heat may be generated by certain chemicalswhich may be used in i a parts of the body to impart heat thereto,

various and may be used to warm the hands in cool weather or may beapplied to the face in cases of tooth-ache, ear-ache or neuralgia, aswill be more fully described in the following specification, set forthin the claims and illustrated in the drawings forming a part of thisapplication.

Figure 1 is a side elevation of the hand warmer constructed inaccordance with this invention. Fig. 2 is a vertical sectional view ofsame. Fig. 3 is a plan view of the heating substance. Fig. 4 is a bottomview of the same.

This device is intended to be constructed in portable form and is ofsmall dimensions on account of the moderate heat which it is designed toimpart and is shown in the drawings as being enveloped in a metallicbulb 5 with perforations 6 for the admission of air and also escape ofheat. The neck 7 of this bulb fits about a receptacle 8 filled with raw.cotton or other Iibrous substance and into which is to be poured acertain amount of alcohol or similar spirits which it absorbs and givesout in the form of vapor. On the lower end of the receptacle 8 is anipple '9 over which fits one of the caps 10 or 11, the latter beingclosed to prevent the escape of the vapor when the device is not in use,but when it is desired to allow the vapor to escape the cap 10 which isopen is applied to the nipple. Over the opening of the cap 10 issuspended a button 12 of platen and phosphor sulfur by means of wires 13passing over hooks 14 at the upper edge of the cap. This platen andphosphor sulfur is sensitive to the vapor of small receptacles forapplication to the alcohol and when exposed for a short "time to thesevapors becomes warm and glows, in a short time becoming sufliciently hotto throw out considerable heat. The formation of the bulb 5 and itslocation around the button 12 not only protects it against injury butalso prevents any damage to outside substances by the redhot button.

In Fig. 2 it will be seen that the cap 11 is embraced by one of a pairof spring fingers 15 which encircle it and serve to retain the cap 10 inits position on the nipple and when it is desired to remove the cap 10and substitute the cap 11 which puts the button out of commission thecap 10 is also held by these spring fin ers 15 and serves to hold thecap 11 in its pace. The up er end of the receptacle 8 is provided with aloop or eye 16 by which it may be suspended from a chain or cord.

This device may be used in winter and carried in the socket so that itmay be held in the hand an serve to warm the same, but the shape may beslightly varied to apply the device to other parts of the body andespecially the face where it may be used for certain ailments to keepthe flesh of these parts warm.

It is obvious tions of this device may be resorted to so that a gentleheat may be applied to the body where it is necessary to apply the samefor surgical purposes.

What I claim as new and desire to secure by Letters Patent is:

1; In a heat generator, the combination with a hollow spherical body, ofa receptacle removably engaged with the said body adapted to contain anabsorbent substance to be saturated with a volatile liquid, andsubstance located within the said hollowbody disposed directly in linewith the said receptacle, said substance being sensitive to the vapor ofthe liquid and adapted to be heated thereby.

2. In a heat generator, with a receptacle having a nipple at one end, ofa hollow body inclosing the nipple and communicating with thereceptacle, absorbent material in the receptacle adapted to contain avolatile liquid, and means removably engaged with the nipple adapted tolow when subjected to the vapor of the iquid to heat the said hollowbody.

the combination I I 3. A heat generator comprising a hollow the liquidin said absorbent substance so perforated spherical body, a receptaclecarthat it will become heated. l ried by said body adapted to contain anab- In testimony whereof I afiiX my signature sorbent substance to besaturated with a in presence of two Witnesses.

V 5 volatile liquid, and a button of platen and AUGUST N OETEL.

hosphor sulfur located within-the said hol- Witnesses: I 0w bod anddisposed in line with the said MAE W. CLINTON, receptac e to bechemically acted upon by JAMES F. DUHAMEL.

